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3 years ago

Which of the following point are on the line given by the equation y=1/2x?

Mathematics

2 answers:

suter [353]3 years ago

7 0

Answer: (4,2) , (2,1), (-2,-1)

Step-by-step explanation:

1/2x is the slope right?

So all you have to do is take a piece of graph paper, (slope being Rise over Run), and go right by 2, and go up by one. You can also do it going into the negatives, such as going left 2 and going down by one.

stellarik [79]3 years ago

6 0

Answer:

Options a, d and e are correct.

Step-by-step explanation:

Given is a line given by the equation as y =1/2 x

Out of given points we can check which points satisfy this equation.

Let us substitute (x,y) the given points and check

a) (4,2) correct

b) (3,6) incorrect

c) (-2,1) incorrect

d) (-2,-1) correct

e) (2,1) correct

f) (3,15) incorrect.

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Step-by-step explanation:

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2 years ago

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3 years ago

5(3square root x) + 9(3square root x)

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1 year ago

As a rule of thumb, the sampling distribution of the sample proportion can be approximated by a normal probability distribution

Gennadij [26K]

As a rule of thumb, the sampling distribution of the sample proportion can be approximated by a normal probability distribution whenever the sample size is large.

<h3>What is the Central limit theorem?</h3>

The Central limit theorem says that the normal probability distribution is used to approximate the sampling distribution of the sample proportions and sample means whenever the sample size is large.
Approximation of the distribution occurs when the sample size is greater than or equal to 30 and n(1 - p) ≥ 5.

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Learn more about the central limit theorem here:

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4 0

2 years ago

A large university is interested in learning about the average time it takes students to drive to campus. The university sampled

Dmitrij [34]

Answer: The value of test statistic is 2.442.

Step-by-step explanation:

Since we have given that

n = 238

Sample mean = 23.2 minutes

Standard deviation = 20.26 minutes

Hypothesis :

$H_0:\mu=20\\H_a:\mu\neq 20$

So, the test statistic value would be

$z=\dfrac{\bar{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\z=\dfrac{23.2-20}{\dfrac{20.26}{\sqrt{236}}}\\\\z=2.442$

Hence, the value of test statistic is 2.442.

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2 years ago